Connecter for belts



Aug. 30, 1932- R. RoDERwALD CONNECTER FOR BELTS Filed DSG. 6, 1930 2 Sheets-Sheet 1 'i JNVENTOR RUDOLF m/WYZL A TTORNE Y 30 1932. R. RoDERwALD CONNECTER FOR BELTS INVENTOR @woef eoasewaa.

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ATTORNEY Filed Dec. 6, 1930 vIl Patented Aug. 30, 1932 l UNITED .STATES PATENT oFElcE RUDOLF ROIDER'WALD, OF BERLIN, GERMANY, .ASSIGNOB T0 THE DAYTON ,ROBER- WALD COMPANY, 0F DAYTON, OHIO, .A CORPORATION' 0F OHIO CONNECTER FOB BELTS Application filed December 6,' 198B. Serial No. 500,548.

My inventionrelates to connecters for belts. Itis the object of my invention to provide a secure connecter that can be readily attached and detached to the free ends of a belt and which will at the same time so ride with the belt as an integral part thereof that there will be no slipping of the metallic parts of the con-` necter with the travelling. 1d Itis my obj ect to provide a connecter which not only connects the free ends of the belt but also carries a belt section of the same general form and character as the belt itself .so that e the junction of the free ends of the belt become substantially of the same structure, and same operation asv the belt itself, while at the same time ready means of attaching and detaching the free ends of the belt are provided.

Referring to the drawings Figure 1 is atop plan View of the metallic parts of the connecter assembly.

Figure 2 is a side elevation thereof.

Figure 3 is a section on the line 3 3 of Figure 1. V

Figure 4 is a side elevation of the complete connecter and of the respective ends of the belt as they are connected together by the connecter.

' Figure 5 is a top plan View thereof.

pulley in which the belt is i Figure 6 is a section on the line 6-6 thereof..

Figure 7 is a section on the line 7-7 of Figure 5.

Figure 8 is a section through a modified form of the connecter.

Figure 9 is a section through another modified form 'of the connecter.

Figure 10 is a plan view of Figure 9.

Figure 11 is a section on the line 11-11 of Fi re 10.

igure 12 is a perspective of one v.of the metallic halves of the connecter hinge.

Figure 13 is an elevation of one of the inside faces or ends of the rubber block in the form that it is premolded, showing it in assembled condition with the hinge.

Figure 14 is a section on the line 111-14 oi Figure 13 looking in the direction of the arrows. V

Figure 15t is a bottom view of the filler so block. v

Referring to the drawings in detail, it will be noted that this hinge comprises a pair of belt clamping members forming the straps of a hinge which are pivoted on a pintle pin. This connecter between the two clamping straps of the hinge carries a block of the same general character and configuration as that of the belt so that the metallic portions of the hinge do not engage with the pulley and so' that the belt is substantially continuous. Thus the metallic parts never touch the pulley and the driving el'ect of the belt is not lessened in any perceptible degree because the hinge space of the connecter is filled with a section of belt material corresponding to the main belt.

The belt clamp` consists of a Uv-'shaped plate formed of an upper plate 1, a vertical 'plate 2, also a horizontal plate 3, and an upwardly extending ear 4. The vertical portion 2 of this plate has a pair of horizontally extending vertically arranged ears, 5 and 6. The other of the clamping members is likewise provided with an upper horizontal plate that engages the upper surface of the belt, such plate being designated 7, a vertical portion 8 having spaced ears 9 and 10, and a lower horizontal portion 11 with an upturned ear 12. The ears 5, 6, 9 and 10 are joined together by a pintle pin 13 which has a square head 14 inserted in a square slot on the ear 9. At the other end of the pintle pin is formed a shoulder 15, which engages with the ear 10. Between the ears 5 and 6 is rigidly mounted a steel sleeve 16. Within the sleeve and between the sleeve and the pintle pin 13 are rawhidev bearing sleeves 17.

Around this connecter is mounted a rubber block or a block of combined rubber and fabric which is trapezoidal in section and of the same section transversely as the ends of the belt 18 and 19. Thus the side walls 20 and 21 of this block are in alignment with the side walls 22 and 23 of the main belt.

There is a slight space 24 between the ends of the belt and the ends of the iiller block. The ends of the filler block are recessed as at l25l to receive the vertical portions 2 and 8 of the hinge clamps.

The block may be either molded around the ioA ears and then vulcanized, or may be preformed and then clamped into osition. When so pre-formed and clamped, t e block is formed so as to be sprung apart along its lines of division until-it engages the hinge and the hinge straps. Then the metal fingers imbedded in the filler block are inserted through apertures in the block and the free ends of these fingers are turned over upon the metal clamping plate. The clam ing plate is designated 26 and the free en s of such fingers which hold together the faces of the block are designated 27 and 28. They project upward throughslots 29 in the clamping plate 26.

n Figures 6, 7, 13, 14 and 15 applicants filler block is shown. This filler block is composed of one piece of rubber, suitably formed to inclose the pivotal connection between the ears ,5 and 6 on one hand, and 9 and 10 von the other hand, and the pintle pin 13 VISO uniting these ears. In order that this ller block may be placed over the ears and the pin the upper part is split.

The lower part or bottom of the filler block is indicated by the numeral 30 and has on one end an end Wall 31 and on the other end an end wall 32, both integral with the bottom. Extending inwardly from one end wall is a top portion 35 and extending inwardly from the other end Wall is a top portion 36. The top portions35 and 36 are parallel to and similar to the bottom portion 30, with the exception that the are separate one from the other so that the ller block may be slip ed over the ears and the pintle pin.

T e interior of the filler block is hollow to provide space for the pintle pin and the ears. The ears fit in slots 33 and 34', one of these slots being adjacent each end of the filler block. Extending .around the filler block, as clearly shown in Figure 7, is a layer of fabric 34a used for the purpose of giving strength and rigidit to the rubber constituting the bottom, en s and to portions of the filler block. The faces of tile top portions abutting each other are indicated by the numerals 37 and 38. In order to hold the top portions 35 and 36 together after the filler block has been placed around the earv members and the pintle pin, a plate 26 is provided. For holding this plate 26 in place lingers 27 and 28 extend through the top portions and through slots in the plate 26, and are bent over on top thereof so it is held in position.

It will be noted that in some cases this filler block is formed in its approximate shape in Y position on the hinge, the hinge is attached to the vulcanized belt members which are likewise formed'in their approximate shape and condition and then the entire structure connected as the belt is vulcanized `in a suitable mold of trapezoidal section.

The hinge clamps lare attached to the notched belt members 18 and 19 by passing the bolts 39 through the apertures 40 in the upper plates 1 and 7, through the ends of the belt at 18 and 19, and then the bolts 39 are threaded through the lower plate members 3 and 11 with the ears 4 and 12 extending into the notch 41 that is formed on the inside of the belt as will be seen in the ends 18 and 19.

Thus the connecter hinge is flexed at its face over the pulley, but 1t will not engage the pulley as the filler block will engage the sides of the groove of the pulley with its faces 20 and 21.

In the modifications shown in Figures 8 to 12, inclusive, the same general appearance is preservedwith some modification of the structure.

As will be seen in Figure 8, a transverse rubber or rubber and fabric plate is mounted on one of the hinge members. Such plate is designated 42 and is retained on one of the hinge members by the rivets 43. The hinge clamps thus are formed with inter-locking loops 44, in which are mounted the pintle sleeve 16, the rawhide fillers 17, and the pintle pin 13. In the form shown in Figure 9 where the axis of the pin is arranged at a higher point, substantially midway of the depth of the belt, the filler block may completely encircle the hinge connection; such block is designated 45.

The forms shown in Figures 10 and 11 employ the particular form ofmodified hinge clamp shown in Figure 12, but otherwise the parts are as indicated heretofore.

I desire to comprehend within mv invention such modifications as may be clearly embraced within the claims and the scope of my invention.

Having thus fully described my invention,

what I claim is new and desire to secure by Letters Patent, is:

1. In combination, a pair of clamps pivoted together for supporting the free ends of belts, and a filler block mounted' on the pivot of said clamps of the same lateral dimension as the belt.

2. In combination, a belt of resilient material, a clamp engaging each of the spaced ends of said belt, an ear on each clamp pivoted directly to the ear on the other clamp, and a filler block carried by said clamps extending transversely between said clamps and the ends of said belt whereby said filler block is carried on the clamps between the ends of the belt adapted to substantially fill the space between the ends of the belt. 3. In combination, a belt of resilient material, a clamp engaging each of the spaced ends of said belt, a pair of ears on each clamp pivoted directly to the ears on the other clamp., and a filler block carried by the ears extending transversely between said clamps and between the ends of said belt, said belt extending laterally of said clamps.

pivoted together 4. In combination, a belt of resilient material, a clamp engaging each of the spaced ends of said belt, a pair of ears on each clamp, a pivot pin through all the ears, and a iller block carried on said pinextending transverselv between said clamps and between the ends of said belt, said belt extending laterally of said clamps, and the, filler block exelliding laterally to the saine extent as the e t. 't

5. In combination, a V-shaped belt having free ends, clamps for clamping said ends, means on each clamp pivoted directly to each other for hinging saidclamps to each other in spaced relationship, and a filler block on said means having the same cross section as said belt mounted between said clamps and having its end walls parallel with the side walls of said belt. y

6. In combination, a V-shaped belt having free ends, clamps for clampingA said ends, spaced means integral with each clamp and for hinging said clamps to each other in spaced relationship, and a filler block on the spaced means having the same cross section as said belt mounted between said clamps and having itsend walls parallel with the side walls of said belt, said liller block being of yielding material like the belt.

In combination, a V-shaped belt having free ends, clamps for clamping said ends, spaced means integral with each clamp and pivoted together for hinging said clamps to each other in spaced relationship, and a filler ,block on the spaced means having the same cross section as said belt mounted between said clamps and having its-end walls parallel with the side walls of said belt, said filler block being of yielding material like the belt, andsaid belt and filler block extending laterally of the hinged clamps and the pivotal connection therebetween whereby the belt and filler block only engage a mounted.`

8. In combination, a belt connecter comprising a pair of pivoted hinged clamps, means on said clamps for compressibly engaging the free ends of the belt, means on said clamps for engaging in recesses in said belt, said hinged clamps including interlocking means for pivoting said clamps one on the other between said clamps to maintain themin spaced relationship,and a lillerblockmounted on said interlocking means laterally coextensive with the belt ends. Y l

9. In combination, a belt connecter comprising a pair of pivoted hinged clamps, means on said clamps for compressibly engaging the free ends of the belt, means on said clamps for fitting in recesses in said belt, said n hinged clamps including interlocking means for pivoting said clamps one on the other between said clamps to maintain them in spaced relationship, and a filler block mounted on said interlocking means laterally coextensive pulley upon which the belt is with the belt ends, clamp said filler block on said clamps.

10. In combination, a resilient belt of trapezoidal section having spaced adjacent ends, a connecter therefor comprising hinged clamping means for engaging the free ends of the belt, and a filler block mounted on said and means to detachably hinged clamping means adapted to permit the movement of the said clamping means and toengage the side walls of the supporting pulley coextensive with the side walls of the belt, and means to space laterally the coengaging parts of the clamping means and to maintain in alignment said hinged clamping means.

11. In combination, a belt having spaced adjacent ends', hinged clamps pivoted on one another engaging said respective ends, scid hinged clamps including a transverse pivot between said ends connecting said clamps, and a filler block mounted on said transverse pivot whose longitudinal and transverse sec tions are trapezoidal.

12. In combination, a belt having spaced adjacent ends, hinged clamps pivoted on one another engaging said respective ends, said hinged clamps including a transverse pivot between said ends connecting said clamps, and a filler block mounted on said hinged clamps whose longitudinal and transverse sections are trapezoidal, said filler block adapted to` overlap the ends of said hinged clamps and to completely surround said ends.

13. In combination, a belt having free spaced adjacent ends of trapezoidal section, hinged clamps mounted on the free ends, said hinged clamps including means to pivot said clamps one on the other comprising overlapping ears and a pintle pin, and a split re silient member adapted to enclose said ears and the pintle pin and extend therebeyond laterally.

14. In combination, a belt having free spaced adjacent ends of trapezoidal section, hinged clamps mounted on the free ends, said hinged clamps including means to pivot said clamps one on the other comprising overlapping ears and a pintle pin, and a split resi1- ient member adapted to enclose said ears and the pintle pin and extend therebeyond laterally, and means to retain said split resilient member in position comprising a clamping plate mounted thereon and clamping members extending therethrough and carried by said split resilient member.`

- 15. In combination, a pair of spaced clamps having ears, means for pivoting said ears to- -1 gether, bolts passing through said clamps and 16. In combination, U-clamps, bolts for holting the clamps to belt ends, overla mounted thereon, a sleeve mounted around said pin between a pair of said ears, a resilient and located between said clamps extending u laterally thereof, av liller between the sleeve and said'pintle pin.

18. In combination jU-clamps, bolts for holting the clamps to belt ends, overla ping ears mounted on said clamps, a pint e pin 2 mounted thereon, a sleeve mounted around said in between a pair of said ears, a resilient lock enclosing said ears and vsaid pin and located between said clamps extending laterally thereof, a filler between the sleeve and said pintle pin of rawhide.

19. In combination U-clamps, bolts for holting the clamps to belt ends, overlapping ears mounted on said clamps, a pintle pin mounted thereon, a sleeve mounted aroundv 39 said in between a pair of said ears, a resilient block enclosing said ears and said pin and located 4between said clamps extending laterally thereof, a filler between the sleeve and said pintle in of rawhide, said resilient block being split metallic lingers embodied in said split bloclr a clamping plate mounted thereon adapte to be retained in position by said lingers.

20. In combination, a V-belt havin spaced ends a hinge, clamps on said hinge c amping the free ends of said belt, vertical clam ing bolts vmounted in said clamps exten ing throu h said belt ends spaced laterally from the si e walls of the belt, a bearing sleeve in said hinge and a filler block encirclin said hinge laterally coextensive with sai belt ends.

as a filler block in a belt connecter, comprising a bottom portion, end walls and .top ortions inte al with said end walls said ttom portion and top ortions chamber for receiving t e pintle of a hinge. 22. A new article of manufacture for use as a. filler block in a belt connecter, comprising` a bottom portion, end walls and top ortions .inte al with said end walls, said ottom ortion and top portions forming a cham er for receiving t e pintle of a hinge, 5 and slots arranged in said block for receiving ears of ahinge carrying said pintle. l 23. A new article of manufacture for use as a filler block -in a belt connecter, compris ing a bottom portion, end walls and top 5 portionsintegral with said end walls, said lock enclosing said ears and said pin.

21. A new article of'manu'facture for use l forming ay bottom portion and portions forming a chamber for receiving the intle of a hinge, and slots arranged in said b ock for receivin ears of a hinge carrying said pintle, an

clamping means for retaining said to porears of a hinge carrying said pintle, an

Vclamping means for retaining said to portions in position comprising metallic gers extend' beneath said top rtions and through t ein, and a clamping p ate mounted thereon engagled bg' the free ends of said lingers, sai ler lock being composed of rubber andwfabric.

-`25. A fastener for the ends of a belt comprising two arts'connected by a pivot pin with4 each o er, each parthaving an upper and a lower plate, bolts screwed into the lower plate anda filling piece of rubber on said pivot pin with a cross section similar to that of the belt and ada ted to lill the gap between the ends of t ebelt. -v

26. A vfastener for the ends of a belt comprising two arts connected by a pivot pin with each. o er, each part having an upper and a lower plate, bolts screwed into the lower plate and a filling piece of rubber on said pivot pin with a cross section similar to that of the belt and ada ted to fill the gap betweeny the ends of the be t, the fillin piece being formed in the same mould as t e belt and vulcanized on the fastener.

In testimony whereofI aix my signature.

- RUDOLF RODERWALD.

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